13550243 has 8 divisors (see below), whose sum is σ = 16159488. Its totient is φ = 11109384.

The previous prime is 13550237. The next prime is 13550263. The reversal of 13550243 is 34205531.

13550243 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13550243 - 2⁶ = 13550179 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13550233) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41921 + ... + 42242.

It is an arithmetic number, because the mean of its divisors is an integer number (2019936).

Almost surely, 2^13550243 is an apocalyptic number.

13550243 is a deficient number, since it is larger than the sum of its proper divisors (2609245).

13550243 is an equidigital number, since it uses as much as digits as its factorization.

13550243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84193.

The product of its (nonzero) digits is 1800, while the sum is 23.

The square root of 13550243 is about 3681.0654707571. The cubic root of 13550243 is about 238.4051839161.

Adding to 13550243 its reverse (34205531), we get a palindrome (47755774).

The spelling of 13550243 in words is "thirteen million, five hundred fifty thousand, two hundred forty-three".